Use babel-loader, but Object.assign is not a function

Question

{ test: /\.js$/, exclude: /node_modules/, loader: 'babel-loader?optional[]=runtime'}

I installed babel-runtime

I use webpack with babel-loader configuration above, but get Object.assign does not work. How to fix it?

Answer 1

You will need to install babel-runtime.

 npm install babel-runtime --save-dev 

Then you can use the following as the loader in your webpack configuration -

 { test: /\.js?$/, exclude: /node_modules/, loaders: ['babel?optional=runtime'] } 

or

 { test: /\.js?$/, exclude: /node_modules/, loader: 'babel-loader?optional=runtime' } 

Answer 2

It should work if you just use babel as the bootloader:

 { test: /\.js$/, exclude: /node_modules/, loader: 'babel'}